Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/SVGFEDisplacementMapElement.cpp

 /*
  * Copyright (C) 2006 Oliver Hunt <oliver@nerget.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 36 matching lines @@
     , m_xChannelSelector(SVGAnimatedEnumeration<ChannelSelectorType>::create(this, SVGNames::xChannelSelectorAttr, CHANNEL_A))
     , m_yChannelSelector(SVGAnimatedEnumeration<ChannelSelectorType>::create(this, SVGNames::yChannelSelectorAttr, CHANNEL_A))
 {
     addToPropertyMap(m_scale);
     addToPropertyMap(m_in1);
     addToPropertyMap(m_in2);
     addToPropertyMap(m_xChannelSelector);
     addToPropertyMap(m_yChannelSelector);
 }
 
+void SVGFEDisplacementMapElement::trace(Visitor* visitor)
+{
+    visitor->trace(m_scale);
+    visitor->trace(m_in1);
+    visitor->trace(m_in2);
+    visitor->trace(m_xChannelSelector);
+    visitor->trace(m_yChannelSelector);
+    SVGFilterPrimitiveStandardAttributes::trace(visitor);
+}
+
 DEFINE_NODE_FACTORY(SVGFEDisplacementMapElement)
 
 bool SVGFEDisplacementMapElement::isSupportedAttribute(const QualifiedName& attrName)
 {
     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
     if (supportedAttributes.isEmpty()) {
         supportedAttributes.add(SVGNames::inAttr);
         supportedAttributes.add(SVGNames::in2Attr);
         supportedAttributes.add(SVGNames::xChannelSelectorAttr);
         supportedAttributes.add(SVGNames::yChannelSelectorAttr);
@@ skipping 36 matching lines @@
     }
 
     if (attrName == SVGNames::inAttr || attrName == SVGNames::in2Attr) {
         invalidate();
         return;
     }
 
     ASSERT_NOT_REACHED();
 }
 
-PassRefPtr<FilterEffect> SVGFEDisplacementMapElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
+PassRefPtrWillBeRawPtr<FilterEffect> SVGFEDisplacementMapElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
 {
     FilterEffect* input1 = filterBuilder->getEffectById(AtomicString(m_in1->currentValue()->value()));
     FilterEffect* input2 = filterBuilder->getEffectById(AtomicString(m_in2->currentValue()->value()));
 
     if (!input1 || !input2)
         return nullptr;
 
-    RefPtr<FilterEffect> effect = FEDisplacementMap::create(filter, m_xChannelSelector->currentValue()->enumValue(), m_yChannelSelector->currentValue()->enumValue(), m_scale->currentValue()->value());
+    RefPtrWillBeRawPtr<FilterEffect> effect = FEDisplacementMap::create(filter, m_xChannelSelector->currentValue()->enumValue(), m_yChannelSelector->currentValue()->enumValue(), m_scale->currentValue()->value());
     FilterEffectVector& inputEffects = effect->inputEffects();
     inputEffects.reserveCapacity(2);
     inputEffects.append(input1);
     inputEffects.append(input2);
     return effect.release();
 }
 
 } // namespace blink